examples/advanced/suit_update: simplify setup

[fabian18]

Contribution description

Because I always run into pitfalls when trying to test the SUIT example, I wanted to ease the setup for me a little bit.
This PR

• adds a start_network.sh for the SUIT example
• alters the Makefiles a bit
• adds a constant SUIT manifest URL the the suit fetch command.

Testing procedure

Client:
USE_ETHOS=0 SUIT_COAP_SERVER_IFACE=enp1s0f0 BOARD=same54-xpro make -C examples/advanced/suit_update/ flash term

Welcome to pyterm!
Type '/exit' to exit.
ifconfig
2025-06-27 10:46:55,741 # ifconfig
2025-06-27 10:46:55,746 # Iface  5  HWaddr: FC:C2:3D:2F:8E:90  Link: up 
2025-06-27 10:46:55,752 #           L2-PDU:1500  MTU:1500  HL:64  Source address length: 6
2025-06-27 10:46:55,754 #           Link type: wired
2025-06-27 10:46:55,760 #           inet6 addr: fe80::fec2:3dff:fe2f:8e90  scope: link  VAL
2025-06-27 10:46:55,766 #           inet6 addr: 2001:db8::fec2:3dff:fe2f:8e90  scope: global  VAL
2025-06-27 10:46:55,769 #           inet6 group: ff02::1
2025-06-27 10:46:55,773 #           inet6 group: ff02::1:ff2f:8e90
2025-06-27 10:46:55,773 # 

Server:
make -C examples/advanced/suit_update/ suit_coap_server

Publish:
USE_ETHOS=0 SUIT_COAP_SERVER_IFACE=enp1s0f0 BOARD=same54-xpro make -C examples/advanced/suit_update/ clean suit/publish

Fetch:

2025-06-27 10:48:31,218 # suit fetch
2025-06-27 10:48:31,220 # suit_worker: started.
2025-06-27 10:48:31,229 # suit_worker: downloading "coap://[2001:db8::1]/fw/suit_update/same54-xpro/riot.suit.latest.bin"
> 2025-06-27 10:48:31,238 # suit_worker: got manifest with size 485
2025-06-27 10:48:31,241 # suit: verifying manifest signature
2025-06-27 10:48:32,384 # suit: validated manifest version
2025-06-27 10:48:32,389 # Manifest seq_no: 1751014057, highest available: 1751013903
2025-06-27 10:48:32,392 # suit: validated sequence number
2025-06-27 10:48:32,394 # Formatted component name: 
2025-06-27 10:48:32,399 # Comparing manifest offset 4000 with other slot offset
2025-06-27 10:48:32,404 # Comparing manifest offset 82000 with other slot offset
2025-06-27 10:48:32,406 # validating vendor ID
2025-06-27 10:48:32,414 # Comparing 547d0d74-6d3a-5a92-9662-4881afd9407b to 547d0d74-6d3a-5a92-9662-4881afd9407b from manifest
2025-06-27 10:48:32,417 # validating vendor ID: OK
2025-06-27 10:48:32,418 # validating class id
2025-06-27 10:48:32,427 # Comparing 50244518-6a7c-5ce7-932b-88b318336c82 to 50244518-6a7c-5ce7-932b-88b318336c82 from manifest
2025-06-27 10:48:32,429 # validating class id: OK
2025-06-27 10:48:32,434 # Comparing manifest offset 4000 with other slot offset
2025-06-27 10:48:32,439 # Comparing manifest offset 82000 with other slot offset
2025-06-27 10:48:32,441 # SUIT policy check OK.
2025-06-27 10:48:32,443 # Formatted component name: 
2025-06-27 10:48:32,449 # riotboot_flashwrite: initializing update to target slot 1
2025-06-27 10:48:32,485 # Fetching firmware |█████████████████████████| 100%
2025-06-27 10:48:54,538 # Finalizing payload store
2025-06-27 10:48:54,540 # Verifying image digest
2025-06-27 10:48:54,544 # Starting digest verification against image
2025-06-27 10:48:54,646 # Install correct payload
2025-06-27 10:48:54,649 # Verified installed payload
2025-06-27 10:48:54,651 # Verifying image digest
2025-06-27 10:48:54,654 # Starting digest verification against image
2025-06-27 10:48:54,757 # Verified installed payload
2025-06-27 10:48:54,760 # Image magic_number: 0x544f4952
2025-06-27 10:48:54,762 # Image Version: 0x685e5aa9
2025-06-27 10:48:54,765 # Image start address: 0x00082400
2025-06-27 10:48:54,767 # Header chksum: 0x494384b1
2025-06-27 10:48:54,768 # 
2025-06-27 10:48:55,770 # suit_worker: update successful
2025-06-27 10:48:55,772 # suit_worker: rebooting...
2025-06-27 10:48:55,810 # main(): This is RIOT! (Version: 2025.07-devel-350-g22ddb-pr/suit_update_simplification)
2025-06-27 10:48:55,813 # RIOT SUIT update example application
2025-06-27 10:48:55,815 # Running from slot 1
2025-06-27 10:48:55,818 # Image magic_number: 0x544f4952
2025-06-27 10:48:55,820 # Image Version: 0x685e5aa9
2025-06-27 10:48:55,823 # Image start address: 0x00082400
2025-06-27 10:48:55,825 # Header chksum: 0x494384b1
2025-06-27 10:48:55,825 # 
2025-06-27 10:48:55,827 # Starting the shell

Issues/PRs references

[crasbe]

The new script is missing a license header and Shellcheck has some warnings too.

You can also use the new SPDX header style: see #21515

[riot-ci]

Murdock results

❌ FAILED

5feb87f fixup! examples/advanced/suit_update: add start_network.sh

Success	Failures	Total	Runtime
329	0	9533	02m:01s

Artifacts